Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho phan gom snippets" » "co phan gom snippets", "hoc phan gom snippets", "hoa phan gom snippets", "cho phan ngoc snippets", "cho phan mem snippets", "cho phan bo snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cho phan gom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho phan gom snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho phan gom snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho phan gom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.